USA Standard Gear

SM465 Manual Transmission Bearing and Seal Kit

$233.99

SKU: ZMBK129WS

In Stock
In Stock
Ships by Aug 31
Free Shipping over $200
$100 Minimum Order
30 Days Return

Description

The USA Standard Gear ZMBK129WS is a comprehensive manual transmission bearing and seal kit specifically engineered for the SM465 transmission. This kit is designed for 1968 and newer 4-speed applications, ensuring compatibility with a wide range of classic Chevrolet and GMC trucks. The kit includes essential components for a thorough transmission rebuild, such as synchronizer rings, a cast iron top cover, a 0.68-inch wide input bearing, and provisions for two PTO covers. USA Standard Gear is known for offering one of the largest inventories of OEM and aftermarket manual transmission components, aiming to provide the parts needed for manual transmission repairs across various applications, from the 1960s to current models. This bearing and seal kit is a direct fit for numerous Chevrolet and GMC models equipped with the SM465 transmission, spanning from the late 1960s through the early 1990s. Specific applications include Chevrolet Blazer, C10, C20, C30, K10, K20, K30, P10, P20, P30, R10, R20, R30, V10, V20, and V30 models, as well as GMC Jimmy, C15, C1500, C25, C2500, C35, C3500, K15, K1500, K25, K2500, K35, K3500, P15, P25, P2500, P35, P3500, R1500, R2500, R3500, V1500, V2500, and V3500 models, among others.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandUSA Standard Gear
Part NumberZMBK129WS
CategoryDrivetrain

We’re here — turning wrenches, just like you.

Call us, follow along, or come say hi.

Buy with Confidence

Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy

Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

View Full Shipping Policy